98731-69-2Relevant academic research and scientific papers
Chemistry of Thermally Generated Transient Phosphanoxyl Complexes
Heurich, Tobias,Qu, Zheng-Wang,Schnakenburg, Gregor,Nejatyjahromy, Yaser,Schiemann, Olav,Grimme, Stefan,Streubel, Rainer
, p. 2877 - 2883 (2017)
Investigations on the reactivity of the transiently formed phosphanoxyl complex [(CO)5W(Ph2POa€￠)], thermally generated from [(CO)5W(Ph2PO)] in toluene, is presented. Apart from self-reactions, trapping of this radical complex was achieved using group 14 hydrides Ph3EH (E = Si, Ge, Sn), leading to new phosphane complexes possessing a P-O-EPh3 bonding motif and the corresponding TEMP-H as byproduct. Reaction pathways, derived from DFT calculations, clearly revealed the intermediacy of various open-shell complexes; EPR measurements showed the presence of radicals, but unfortunately interpretation was not achieved.
METALLKOMPLEXIERTE SULFINYLPHOSPHINITE ALS INTERMEDIATE BEI DER BILDUNG VON DIPHOSPHOXAN-KOMPLEXEN. SYNTHESE, EIGENSCHAFTEN UND STRUKTUR VON μ-(TETRAPHENYLDIPHOSPHOXAN)BIS-KOMPLEXEN, O (M=Cr, Mo, W)
Zeiher, C.,Mohyla, J.,Lorenz, I. P.,Hiller, W.
, p. 159 - 170 (2007/10/02)
The diphenylphosphane complexes (CO)5MP(C6H5)2H (M=Cr,Mo,W) (Ia-Ic) react with sulfonyl chlorides, RSO2Cl, (R=CH3, p-CH3C6H4) in diethyl ether via the non-isolable sulfinylphosphinito-P complexes (CO)5M (IIa-IIc) to give the homogeneous anhydrides, the diphodoxane complexes 2O (IIIa-IIIc) and the sulfinylsulfolanes R(O)SS(O)2R.The composition and structures of complexes III result from the IR, 31P NMR and mass spectra.The crystal structure of IIIa has been determined IIIa crystalliyes in the space group Cc.Two nearly octahedrally arranged (CO)5CrP(C6H5)2 moieties are joined by an unsymmetrical oxygen-bridge in the all-trans position, the bond angle P(1)-OP(2) being 145 deg.
